... ,stainless steel BTO10,12,18,BTO22, 28,30.CBT60 65 concertina razor barbed wire /Blade wire :1. Material:1)Hot dip ... in different grade.2. Production method:1) straight line type2) concertina type3. Razor Specification:Outside of diameter : 450mm ,500mm,600mm, 700mm ... type 2.Please let me know the quantity and material concertina razor barbed wire/blade wire